Upgrading your Traxxas TRX4M 1/18 scale RC crawler? This KingVal servo arm is a solid replacement part. It's made from high-quality aluminum alloy, which is stronger and more durable than the stock plastic part. The 25-tooth design is specifically compatible with the stock servo on the TRX4M. It's been precision CNC machined, so the fit is exact and the finish looks really clean (comes in a cool black and red color). Installation is straightforward – just swap out the old arm for this one. Since it's metal, it can handle more stress and torque, which is great for crawling over rough terrain where your steering servo might get a workout. Just remember, while it's stronger, it's not indestructible – proper maintenance and setup still matter. A simple upgrade that can improve reliability and give your little crawler a tougher look. Easy to install and a smart spare to have in your parts box.
